Home / 21,255.56-29,331.96-11,823.92

Finding the Fourth Proportional to 21,255.56, 29,331.96 and 11,823.92

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Solution

The fourth proportional to 21,255.56, 29,331.96 and 11,823.92 is: 16,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.56 : 29,331.96 = 11,823.92 : x
  2. Step 2: Convert to fraction form
    21,255.56/29,331.96 = 11,823.92/x
  3. Step 3: Cross multiply
    21,255.56x = 29,331.96 × 11,823.92
  4. Step 4: Simplify right side
    21,255.56x = 346,818,748.48
  5. Step 5: Solve for x
    x = 346,818,748.48/21,255.56
  6. Step 6: Final answer
    x = 16,316.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.